Although we are always excited to see new processor lineups from Intel, this
weeks APAC roadmap showed us the most ambitious processor rollout since Prescott.

For starters, Intel will release 4 new SKUs of Socket 775 processors based
on 2MB L2 cache revisions of the Prescott core. However, the new 6xx processors
are not just Prescotts with extra L2 cache slapped on them. In fact, the most
interesting addition we noted with these new processors is the addition of Enhanced
Speed Step Technology (EIST, also known as ESS depending on your circles). Up
until now, EIST has been limited only to Pentium M processors. For those not
familiar with EIST, it is simply a feature which allows a user to dynamically
clock the processor during operation; very much like AMD's Cool 'n Quiet. This
would certainly be a welcomed addition to the NetBurst architecture as cooling
issues are more and more prevalent as Prescott ramps up.

Intel
Desktop LineupLGA775

Processor

Speed

Cache

FSB

Launch Date

Pentium 4 XE 3.73GHz

3.73GHz

2MB

1066MHz

Late Q4'04

Pentium 4 XE 3.46GHz

3.46GHz

1MB

1066MHz

Nov 2004

Pentium 4 670

3.80GHz

2MB

800MHz

Q1'05

Pentium 4 660

3.60GHz

2MB

800MHz

Q1'05

Pentium 4 650

3.40GHz

2MB

800MHz

Q1'05

Pentium 4 640

3.20GHz

2MB

800MHz

Q1'05

Pentium 4 580J

4.00GHz

1MB

800MHz

Q1'05

Pentium 4 570J

3.80GHz

1MB

800MHz

Q4'04

Pentium 4 560J

3.60GHz

1MB

800MHz

Q3'04

Pentium 4550J

3.40GHz

1MB

800MHz

Q3'04

Pentium 4 540J

3.20GHz

1MB

800MHz

Q3'04

Pentium 4 530J

3.00GHz

1MB

800MHz

Q3'04

Pentium 4 520J

2.80GHz

1MB

800MHz

Q3'04

Oddly, this feature which we consider one of the strongest advantages of the
6xx processor line goes completely unmentioned aside from a few footnotes in
the entire roadmap. Unfortunately, one disadvantage we saw of the processor
was the 800MHz front side bus. These chips are slated to launch with the 1066MHz
FSB capable Glenwood/Lakeport chipsets, and that gives us little hope that we
will see many 1066FSB processor launches in the near future other than Pentium
4 Extreme Edition 3.46 and 3.73. It seems the Pentium 4 720J (Pentium 4 Extreme
Edition 3.73) that we mentioned in our previous roadmap update is no longer
refered to as Pentium 4 720J. The Pentium 4 580 and 570 have also been pushed
back a quarter.

The same cryptic "Smithfield" introduction page was found in this
roadmap as well. You can check out the original we published here
on AnandTech last month.

The Celeron lineup is also finally launching on the Socket 775 socket as well.
The new processors, ranging from model 325 to 350, will begin deployment in
a few weeks. Even though the Socket 478 Celeron roadmap continues well into
Q2'05, we will only see new Celeron model releases on Socket 775; but as an
added bonus all Socket 775 Celerons support the XD/NX bit. We have some future
articles discussing the advantage and practicality of XD/NX and we will discuss
those more in the future.

Intel
Budget Desktop LineupLGA775

Processor

Speed

Cache

FSB

Launch Date

Celeron D 350

3.20GHz

256KB

533MHz

Q1'05

Celeron D 345

3.06GHz

256KB

533MHz

Nov 2004

Celeron D 340

2.93GHz

256KB

533MHz

Soon

Celeron D 335

2.80GHz

256KB

533MHz

Soon

Celeron D 330

2.66GHz

256KB

533MHz

Soon

Celeron D 325

2.53GHz

256KB

533MHz

Soon

Finally, we have a few teasers about Lakeport and Glenwood. As we have mentioned
in the past, Glenwood (akin to Alderwood; i925) will act as the "high"
end Intel core logic. Lakeport (akin to Grantsdale; i915) will assume the lower
end position. Details were skimp other than the new chipsets will both support
PCIe, 7.1 channel audio, dual channel DDR2-667 and the ICH7 southbridge. 667MHz
DDR2 looks extremely unambitious on Intel's behalf; particularly since we have
DDR2-667 modules now and promises from SiS, ATI and VIA to deliver DDR2-800
within 6 months. Release dates for Glenwood/Lakeport stand at Q2'05.

I think Intel should have made regular Pentium 4's Prescott with 1MB L2 and 1066MHz bus, Pentium 4 EE should have been Prescott 2MB L2 and 1066MHz bus. There is a bigger difference between the EE and non EE then. 33% bus speed difference would do even less than current EE's advantages, although the newer EE's should have closer clock speed to the regular P4 chips.

I'll just say now I might be wrong but wasn't 266 based, way back when, on a 33.3 bus which lends itself to 66.6, to 266.4, and thus to 1065.6? I probably just have not had enough coffee yet, but we dropped the fractions long ago, but it's from that I calculated the cpu speeds.
Reply

IntelUser2000: Thanks for the post; i will look into it more. All of the processors your mentioned were P6 based which made sense to me.

I have to look more into the P4-M line, i did not know it had EIST and that was not really documented in anything ive seen yet. I also have not seen anything that says EIST is on Nocona; although its a good idea it should be on all their processors.

I appreciate the info though I have sent some emails to Intel people about it.